🔖 Release version 0.120.2

[skip ci]

.github/workflows/build-docs.yml

@@ -118,7 +118,7 @@ jobs:
           path: docs/${{ matrix.lang }}/.cache
       - name: Build Docs
         run: python ./scripts/docs.py build-lang ${{ matrix.lang }}
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: docs-site-${{ matrix.lang }}
           path: ./site/**

.github/workflows/deploy-docs.yml

@@ -49,7 +49,7 @@ jobs:
         run: |
           rm -rf ./site
           mkdir ./site
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           path: ./site/
           pattern: docs-site-*

.github/workflows/smokeshow.yml

@@ -34,7 +34,7 @@ jobs:
             requirements**.txt
             pyproject.toml
       - run: uv pip install -r requirements-github-actions.txt
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: coverage-html
           path: htmlcov

.github/workflows/test.yml

@@ -97,7 +97,7 @@ jobs:
           COVERAGE_FILE: coverage/.coverage.${{ runner.os }}-py${{ matrix.python-version }}
           CONTEXT: ${{ runner.os }}-py${{ matrix.python-version }}
       - name: Store coverage files
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-${{ matrix.python-version }}-${{ matrix.pydantic-version }}
           path: coverage
@@ -126,7 +126,7 @@ jobs:
       - name: Install Dependencies
         run: uv pip install -r requirements-tests.txt
       - name: Get coverage files
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           pattern: coverage-*
           path: coverage
@@ -136,7 +136,7 @@ jobs:
       - run: coverage report
       - run: coverage html --title "Coverage for ${{ github.sha }}"
       - name: Store coverage HTML
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-html
           path: htmlcov

.pre-commit-config.yaml

@@ -14,7 +14,7 @@ repos:
     -   id: end-of-file-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.14.1
+    rev: v0.14.2
     hooks:
     -   id: ruff
         args:

README.md

@@ -55,6 +55,7 @@ The key features are:
 <a href="https://www.coderabbit.ai/?utm_source=fastapi&utm_medium=badge&utm_campaign=fastapi" target="_blank" title="Cut Code Review Time & Bugs in Half with CodeRabbit"><img src="https://fastapi.tiangolo.com/img/sponsors/coderabbit.png"></a>
 <a href="https://subtotal.com/?utm_source=fastapi&utm_medium=sponsorship&utm_campaign=open-source" target="_blank" title="The Gold Standard in Retail Account Linking"><img src="https://fastapi.tiangolo.com/img/sponsors/subtotal.svg"></a>
 <a href="https://docs.railway.com/guides/fastapi?utm_medium=integration&utm_source=docs&utm_campaign=fastapi" target="_blank" title="Deploy enterprise applications at startup speed"><img src="https://fastapi.tiangolo.com/img/sponsors/railway.png"></a>
+<a href="https://serpapi.com/?utm_source=fastapi_website" target="_blank" title="SerpApi: Web Search API"><img src="https://fastapi.tiangolo.com/img/sponsors/serpapi.png"></a>
 <a href="https://databento.com/?utm_source=fastapi&utm_medium=sponsor&utm_content=display" target="_blank" title="Pay as you go for market data"><img src="https://fastapi.tiangolo.com/img/sponsors/databento.svg"></a>
 <a href="https://speakeasy.com/editor?utm_source=fastapi+repo&utm_medium=github+sponsorship" target="_blank" title="SDKs for your API | Speakeasy"><img src="https://fastapi.tiangolo.com/img/sponsors/speakeasy.png"></a>
 <a href="https://www.svix.com/" target="_blank" title="Svix - Webhooks as a service"><img src="https://fastapi.tiangolo.com/img/sponsors/svix.svg"></a>

docs/en/data/sponsors.yml

@@ -26,6 +26,9 @@ gold:
   - url: https://docs.railway.com/guides/fastapi?utm_medium=integration&utm_source=docs&utm_campaign=fastapi
     title: Deploy enterprise applications at startup speed
     img: https://fastapi.tiangolo.com/img/sponsors/railway.png
+  - url: https://serpapi.com/?utm_source=fastapi_website
+    title: "SerpApi: Web Search API"
+    img: https://fastapi.tiangolo.com/img/sponsors/serpapi.png
 silver:
   - url: https://databento.com/?utm_source=fastapi&utm_medium=sponsor&utm_content=display
     title: Pay as you go for market data

docs/en/docs/release-notes.md

@@ -7,6 +7,29 @@ hide:
 
 ## Latest Changes
 
+## 0.120.2
+
+### Fixes
+
+* 🐛 Fix separation of schemas with nested models introduced in 0.119.0. PR [#14246](https://github.com/fastapi/fastapi/pull/14246) by [@tiangolo](https://github.com/tiangolo).
+
+### Internal
+
+* 🔧 Add sponsor: SerpApi. PR [#14248](https://github.com/fastapi/fastapi/pull/14248) by [@tiangolo](https://github.com/tiangolo).
+* ⬆ Bump actions/download-artifact from 5 to 6. PR [#14236](https://github.com/fastapi/fastapi/pull/14236) by [@dependabot[bot]](https://github.com/apps/dependabot).
+* ⬆ [pre-commit.ci] pre-commit autoupdate. PR [#14237](https://github.com/fastapi/fastapi/pull/14237) by [@pre-commit-ci[bot]](https://github.com/apps/pre-commit-ci).
+* ⬆ Bump actions/upload-artifact from 4 to 5. PR [#14235](https://github.com/fastapi/fastapi/pull/14235) by [@dependabot[bot]](https://github.com/apps/dependabot).
+
+## 0.120.1
+
+### Upgrades
+
+* ⬆️ Bump Starlette to <`0.50.0`. PR [#14234](https://github.com/fastapi/fastapi/pull/14234) by [@YuriiMotov](https://github.com/YuriiMotov).
+
+### Internal
+
+* 🔧 Add `license` and `license-files` to `pyproject.toml`, remove `License` from `classifiers`. PR [#14230](https://github.com/fastapi/fastapi/pull/14230) by [@YuriiMotov](https://github.com/YuriiMotov).
+
 ## 0.120.0
 
 There are no major nor breaking changes in this release. ☕️

docs/en/overrides/main.html

@@ -80,6 +80,12 @@
         <img class="sponsor-image" src="/img/sponsors/railway-banner.png" />
       </a>
     </div>
+    <div class="item">
+      <a title="SerpApi: Web Search API" style="display: block; position: relative;" href="https://serpapi.com/?utm_source=fastapi_website" target="_blank">
+        <span class="sponsor-badge">sponsor</span>
+        <img class="sponsor-image" src="/img/sponsors/serpapi-banner.png" />
+      </a>
+    </div>
   </div>
 </div>
 {% endblock %}

fastapi/__init__.py

@@ -1,6 +1,6 @@
 """FastAPI framework, high performance, easy to learn, fast to code, ready for production"""
 
-__version__ = "0.120.0"
+__version__ = "0.120.2"
 
 from starlette import status as status
 

fastapi/_compat/v2.py

@@ -207,11 +207,31 @@ def get_definitions(
     override_mode: Union[Literal["validation"], None] = (
         None if separate_input_output_schemas else "validation"
     )
-    flat_models = get_flat_models_from_fields(fields, known_models=set())
-    flat_model_fields = [
-        ModelField(field_info=FieldInfo(annotation=model), name=model.__name__)
-        for model in flat_models
+    validation_fields = [field for field in fields if field.mode == "validation"]
+    serialization_fields = [field for field in fields if field.mode == "serialization"]
+    flat_validation_models = get_flat_models_from_fields(
+        validation_fields, known_models=set()
+    )
+    flat_serialization_models = get_flat_models_from_fields(
+        serialization_fields, known_models=set()
+    )
+    flat_validation_model_fields = [
+        ModelField(
+            field_info=FieldInfo(annotation=model),
+            name=model.__name__,
+            mode="validation",
+        )
+        for model in flat_validation_models
     ]
+    flat_serialization_model_fields = [
+        ModelField(
+            field_info=FieldInfo(annotation=model),
+            name=model.__name__,
+            mode="serialization",
+        )
+        for model in flat_serialization_models
+    ]
+    flat_model_fields = flat_validation_model_fields + flat_serialization_model_fields
     input_types = {f.type_ for f in fields}
     unique_flat_model_fields = {
         f for f in flat_model_fields if f.type_ not in input_types

pyproject.toml

@@ -7,6 +7,8 @@ name = "fastapi"
 dynamic = ["version"]
 description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
 readme = "README.md"
+license = "MIT"
+license-files = ["LICENSE"]
 requires-python = ">=3.8"
 authors = [
     { name = "Sebastián Ramírez", email = "tiangolo@gmail.com" },
@@ -31,7 +33,6 @@ classifiers = [
     "Framework :: Pydantic :: 1",
     "Framework :: Pydantic :: 2",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
@@ -44,7 +45,7 @@ classifiers = [
     "Topic :: Internet :: WWW/HTTP",
 ]
 dependencies = [
-    "starlette>=0.40.0,<0.49.0",
+    "starlette>=0.40.0,<0.50.0",
     "pydantic>=1.7.4,!=1.8,!=1.8.1,!=2.0.0,!=2.0.1,!=2.1.0,<3.0.0",
     "typing-extensions>=4.8.0",
     "annotated-doc>=0.0.2",

tests/test_no_schema_split.py

@@ -0,0 +1,203 @@
+# Test with parts from, and to verify the report in:
+# https://github.com/fastapi/fastapi/discussions/14177
+# Made an issue in:
+# https://github.com/fastapi/fastapi/issues/14247
+from enum import Enum
+from typing import List
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+from inline_snapshot import snapshot
+from pydantic import BaseModel, Field
+
+from tests.utils import pydantic_snapshot
+
+
+class MessageEventType(str, Enum):
+    alpha = "alpha"
+    beta = "beta"
+
+
+class MessageEvent(BaseModel):
+    event_type: MessageEventType = Field(default=MessageEventType.alpha)
+    output: str
+
+
+class MessageOutput(BaseModel):
+    body: str = ""
+    events: List[MessageEvent] = []
+
+
+class Message(BaseModel):
+    input: str
+    output: MessageOutput
+
+
+app = FastAPI(title="Minimal FastAPI App", version="1.0.0")
+
+
+@app.post("/messages", response_model=Message)
+async def create_message(input_message: str) -> Message:
+    return Message(
+        input=input_message,
+        output=MessageOutput(body=f"Processed: {input_message}"),
+    )
+
+
+client = TestClient(app)
+
+
+def test_create_message():
+    response = client.post("/messages", params={"input_message": "Hello"})
+    assert response.status_code == 200, response.text
+    assert response.json() == {
+        "input": "Hello",
+        "output": {"body": "Processed: Hello", "events": []},
+    }
+
+
+def test_openapi_schema():
+    response = client.get("/openapi.json")
+    assert response.status_code == 200, response.text
+    assert response.json() == snapshot(
+        {
+            "openapi": "3.1.0",
+            "info": {"title": "Minimal FastAPI App", "version": "1.0.0"},
+            "paths": {
+                "/messages": {
+                    "post": {
+                        "summary": "Create Message",
+                        "operationId": "create_message_messages_post",
+                        "parameters": [
+                            {
+                                "name": "input_message",
+                                "in": "query",
+                                "required": True,
+                                "schema": {"type": "string", "title": "Input Message"},
+                            }
+                        ],
+                        "responses": {
+                            "200": {
+                                "description": "Successful Response",
+                                "content": {
+                                    "application/json": {
+                                        "schema": {
+                                            "$ref": "#/components/schemas/Message"
+                                        }
+                                    }
+                                },
+                            },
+                            "422": {
+                                "description": "Validation Error",
+                                "content": {
+                                    "application/json": {
+                                        "schema": {
+                                            "$ref": "#/components/schemas/HTTPValidationError"
+                                        }
+                                    }
+                                },
+                            },
+                        },
+                    }
+                }
+            },
+            "components": {
+                "schemas": {
+                    "HTTPValidationError": {
+                        "properties": {
+                            "detail": {
+                                "items": {
+                                    "$ref": "#/components/schemas/ValidationError"
+                                },
+                                "type": "array",
+                                "title": "Detail",
+                            }
+                        },
+                        "type": "object",
+                        "title": "HTTPValidationError",
+                    },
+                    "Message": {
+                        "properties": {
+                            "input": {"type": "string", "title": "Input"},
+                            "output": {"$ref": "#/components/schemas/MessageOutput"},
+                        },
+                        "type": "object",
+                        "required": ["input", "output"],
+                        "title": "Message",
+                    },
+                    "MessageEvent": {
+                        "properties": {
+                            "event_type": pydantic_snapshot(
+                                v2=snapshot(
+                                    {
+                                        "$ref": "#/components/schemas/MessageEventType",
+                                        "default": "alpha",
+                                    }
+                                ),
+                                v1=snapshot(
+                                    {
+                                        "allOf": [
+                                            {
+                                                "$ref": "#/components/schemas/MessageEventType"
+                                            }
+                                        ],
+                                        "default": "alpha",
+                                    }
+                                ),
+                            ),
+                            "output": {"type": "string", "title": "Output"},
+                        },
+                        "type": "object",
+                        "required": ["output"],
+                        "title": "MessageEvent",
+                    },
+                    "MessageEventType": pydantic_snapshot(
+                        v2=snapshot(
+                            {
+                                "type": "string",
+                                "enum": ["alpha", "beta"],
+                                "title": "MessageEventType",
+                            }
+                        ),
+                        v1=snapshot(
+                            {
+                                "type": "string",
+                                "enum": ["alpha", "beta"],
+                                "title": "MessageEventType",
+                                "description": "An enumeration.",
+                            }
+                        ),
+                    ),
+                    "MessageOutput": {
+                        "properties": {
+                            "body": {"type": "string", "title": "Body", "default": ""},
+                            "events": {
+                                "items": {"$ref": "#/components/schemas/MessageEvent"},
+                                "type": "array",
+                                "title": "Events",
+                                "default": [],
+                            },
+                        },
+                        "type": "object",
+                        "title": "MessageOutput",
+                    },
+                    "ValidationError": {
+                        "properties": {
+                            "loc": {
+                                "items": {
+                                    "anyOf": [{"type": "string"}, {"type": "integer"}]
+                                },
+                                "type": "array",
+                                "title": "Location",
+                            },
+                            "msg": {"type": "string", "title": "Message"},
+                            "type": {"type": "string", "title": "Error Type"},
+                        },
+                        "type": "object",
+                        "required": ["loc", "msg", "type"],
+                        "title": "ValidationError",
+                    },
+                }
+            },
+        }
+    )

tests/test_pydantic_v1_v2_multifile/test_multifile.py

@@ -1028,17 +1028,6 @@ def test_openapi_schema():
                                 "type": "object",
                                 "title": "HTTPValidationError",
                             },
-                            "SubItem-Output": {
-                                "properties": {
-                                    "new_sub_name": {
-                                        "type": "string",
-                                        "title": "New Sub Name",
-                                    }
-                                },
-                                "type": "object",
-                                "required": ["new_sub_name"],
-                                "title": "SubItem",
-                            },
                             "ValidationError": {
                                 "properties": {
                                     "loc": {
@@ -1113,11 +1102,11 @@ def test_openapi_schema():
                                         "title": "New Description",
                                     },
                                     "new_sub": {
-                                        "$ref": "#/components/schemas/SubItem-Output"
+                                        "$ref": "#/components/schemas/tests__test_pydantic_v1_v2_multifile__modelsv2__SubItem"
                                     },
                                     "new_multi": {
                                         "items": {
-                                            "$ref": "#/components/schemas/SubItem-Output"
+                                            "$ref": "#/components/schemas/tests__test_pydantic_v1_v2_multifile__modelsv2__SubItem"
                                         },
                                         "type": "array",
                                         "title": "New Multi",